Tuesday
October 21, 2014

Posts by anon


Total # Posts: 1,384

Geometry
Is it D?
March 2, 2014

Geometry
A rectangular prism has a base that is 5 cm by 7 cm and a height of 12 cm. If all dimensions are doubled, what happens to the volume? A. When the dimensions are doubled, the volume is twice the original volume. B. When the dimensions are doubled, the volume is three times the ...
March 2, 2014

Geometry
A triangle is enlarged by a factor of 3. The perimeter of the new triangle is 36 feet. What could be the lengths of the sides of the original triangle? A. 3 feet, 4 feet, and 5 feet B. 1.5 feet, 1.25 foot, and 1.25 foot C. 2 feet, 0.5 feet, and 1.8 feet D. 4 feet, 4 feet, and ...
March 2, 2014

Geometry
The circumference of a circle changes from 20 to 4 after a dilation. What was the scale factor of the dilation? A. 1/25 B. 1/5 C. 5 D. 25
March 2, 2014

Geometry
A circle with a radius of 1/2 ft is dilated by a scale factor of 8. Which statements about the new circle are true? Check all that apply. A.The length of the new radius will be 4 feet. B.The length of the new radius will be 32 feet. C.The new circumference will be 8 times the ...
March 2, 2014

Geometry
What is the height of a cylinder with a volume of 384π cubic inches and a radius of 8 inches? Round to the nearest tenth of an inch.
February 28, 2014

Geometry
A cylindrical water tank has a diameter of 20 feet and a height of 15 feet. How much water is needed to fill the tank?
February 28, 2014

math- calculus
You will often see proj (Vector a onto Vector b) written as projb⃗ a⃗ .Show that projb⃗ a⃗ =(a⃗ ⋅b⃗/ b⃗ ⋅b⃗ )*b⃗ .
February 26, 2014

physics
(a) A car with a mass of 950 kg is moving to the right with a constant speed of 1.45 m/s. What is the total force on the car? (b) What is the total force on the car if it is moving to the left?
February 21, 2014

math
A stairway runs up the edge of the pyramid. From bottom to top the stairway is 92 m long. The stairway makes an angle of 70° to the base edge, as shown. A line from the middle of one of the base edges to the top of the pyramid makes an angle of elevation of 52° with ...
February 20, 2014

Black Death
I have to do a powerpoint on the Black Death. Where can I find the best information to write about it?
February 19, 2014

Geometry
Is it B?
February 17, 2014

Geometry
How does the volume of a rectangular prism change if the width is reduced to 1/10 of its original size, the height is reduced to 1/4 of its original size, and the length is reduced to 2/3 of its original size? A. V=1/120lwh B. V=1/60lwh C. V= 2/3lwh D. V=3/4lwh
February 17, 2014

MATH
David wants to reduce a rectangular image on his computer so that the new image has 25% of the area of the original image. How should David modify the image? Justify your answer.
February 17, 2014

MATH
Drew has a rectangular postcard that is 6 inches long and 4 inches wide. He uses a photocopier to enlarge it, so that the length and width are 1.5 times as long as those of the original postcard. Explain how the perimeter and area change.
February 17, 2014

Geometry
Thank you so much oh my god
February 17, 2014

Geometry
How does the volume of a square pyramid change if the base area is quadrupled and the height is reduced to 1/9 of its original size? A. V= 1/27Bh B. V= 4/27Bh C. V= 2/9Bh D. V= 4/9Bh
February 17, 2014

Geometry
but that's not a choice. A. 1/6 B. 1/3 C. 3 D. 6
February 17, 2014

Geometry
The volume of a square pyramid is equal to _____ times the volume of a cube where the bases are the same, but the square pyramid is half the height of the cube.
February 17, 2014

Geometry
If a cylinder’s radius and height are each shrunk down to a third of the original size, what would be the formula to find the modified surface area?
February 17, 2014

Calc
Find the coordinates of the point on the curve xy=6 in quadrant I where the normal to the curve passes through the origin.
February 16, 2014

calc
The slope of the tangent to the curve y=f(x) is given by (1/9)(x^2)(y^2). The curve passes through the point (3,1). Find the value of y when x=3*cubedroot(3).
February 16, 2014

Calc
it wasn't a typo.. how did you get 10?
February 15, 2014

Calc
Let f be the function that contains the point (-1,8) and satisfies the differential equation dy/dx=10/(x^2+1) (a) Write the equation of the tangent to f at x=-1. (b) Use your equation in part a to estimate f(0). (c) We know that the integral from -1 to 0 of 10/(x^2+1) equals ...
February 15, 2014

Geometry
Andrea has a yard shaped like parallelogram ABCD. The garden area, parallelogram EFGB, has an area of 105 ft. If Andrea wants to sod the rest of her yard, how many square feet of sod should she order? A. 765 ft B. 840 ft C. 945 ft D. 1,515 ft
February 9, 2014

Math :-)
Explain why knowing the height is needed when finding the perimeter of a right triangle.
February 9, 2014

Geometry
Maria is making a stained glass window in the form of a kite. The width of the window must be 15 in., and she only has enough stained glass to cover 60 in. What should the height of the window be? A. 4 in. B. 6 in. C. 8 in. D. 12 in.
February 9, 2014

Classical mechanics
Hi juanpro is there other classical mechanic. I might want to join too.
February 7, 2014

Plz, plz help! SS
Whats that Nicole M??
February 5, 2014

english/writing
does my thesis statement make sense? is it clear? any suggestions are welcomed In "The Love Song of J Alfred Prufrock," T.S. Eliot used Prufrock to symbolize modern man's fruitless struggle to find self-worth, love, and insecurities of owns appearance. thank you! :D
February 4, 2014

biology
"ide","ite","ate"
February 4, 2014

Business/ Computers
Hello I'm doing a powerpoint on the history of computers for business but I just have to look for people. Do you mind giving me a website that would be perfect to find all these people? 1. Blaise Pascal 2. Wilhelm Schickard 3. Christopher Sholes 4. George Stibitz 5. ...
February 3, 2014

Science (Chemistry)
After submitting the answer, this is what I received as feedback. The system is marking that the amount of moles of precipitate was incorrect, although when I did the problem originally I got the same number that you did. I am just posting this feedback for future reference, ...
February 2, 2014

Science (Chemistry)
A student mixes 35.0 mL of 2.82 M Pb(NO3)2(aq) with 20.0 mL of 0.00221 M Na2C2O4(aq). How many moles of PbC2O4(s) precipitate from the resulting solution? What are the values of [Pb2 ], [C2O42–], [NO3–], and [Na ] after the solution has reached equilibrium at 25 °...
February 2, 2014

Science (Chemistry)
A student mixes 35.0 mL of 2.82 M Pb(NO3)2(aq) with 20.0 mL of 0.00221 M Na2C2O4(aq). How many moles of PbC2O4(s) precipitate from the resulting solution? What are the values of [Pb2 ], [C2O42–], [NO3–], and [Na ] after the solution has reached equilibrium at 25 °...
February 2, 2014

science
Write a balanced equation to describe the following reactions: a) C14H30 is cracked to produce ethene, hydrogen and one other compound b) C16H34 is cracked to produce ethene and propene in a 2:1 ratio and only one other compound
February 1, 2014

math
72 scored higher than 85% 8 scored lower
January 30, 2014

science(check answers)
Its C lol
January 29, 2014

URGENT Physics PLEASE help
5. A 1,600 kg car is moving south at 24 m/s. What is its momentum? (Points : 1) 66 kgm/s south 66 kgm/s north 38,000 kgm/s north 38,000 kgm/s south Question 6. 6. The velocity of a 150 kg cart changes from 6.0 m/s to 14.0 m/s. What is the magnitude of the impulse that acted on...
January 27, 2014

permutation and combination
The game of euchre uses only the 9s, 10s, jacks, queens, kings, and aces from a standard deck of cards How many five-card hands have at least two red cards?
January 23, 2014

math
8 Quarters + 3 Dimes + 7 Nickels = 21 coins he uses 16 coins 21 - 16 = 5 he used 8 Quarters, 3 Dimes and 5 Nickels therefore he has 2 Nickels left
January 23, 2014

permutations with identical items.
how many four letter arrangements are there for the word Mattawa?
January 23, 2014

math
* :)
January 22, 2014

math
your welcome ")
January 22, 2014

math
12/12 - (3/12 + 2/12) 12/12 - 5/12 = 7/12 therefore there are 7 green marbles
January 22, 2014

Data Management
what is the probability that either a heart or a face card (K Q J) is chosen but the Q of heart is missing from the deck?
January 22, 2014

Data Management
a couple is planning to have seven children. what is the probability that at least 3 of the children will have a birthday in the same month
January 22, 2014

Data Management
if mike does homework today the probability that he will do it tomorrow is 0.8. the probability he will do it today is 0.7. what are the odds that he will do it both today and tomorrow
January 22, 2014

Data Management
there is a six sided die, number 1- to 6. what is the probability that it it take exactly two tries to roll a 4? what is the expected waiting time until and odd prime number is rolled?
January 22, 2014

Spanish
Can somebody help with my Spanish review? Combina lógicamente las palabras de vocabulario de las dos columnas. a. la caza b. el boxeo c. penalizar d. el/la jinete e. la cancha f. transnochar g. el campamento h. los naipes 1. el arco y la flecha (A) 2. la tienda de campa...
January 17, 2014

URGENT! PLEASE HELP QUICK PHYSICS
Summarize two observations that are contrary to the predictions based on Newton’s laws but that confirm Einstein’s explanation of gravity. Indicate how the predictions based on Newton’s theory differ from Einstein’s.
January 15, 2014

Damon
I've spent 4 hours to solve it as the result question a is done, but i'm a russian teenager, that is going to attend the uneversity, and unfotunately, i don't know how to solve it with non-constant friction koff.
January 12, 2014

World History
What were the crusades? What motivated most Europeans to join the crusades?
January 12, 2014

Proofreading
Well SMS was my middle school and now we're in high school and we don;t even go to the same one
January 10, 2014

Proofreading
tomorrow is my friend's birthday and she's turning 15 so I'm writing her a birthday card and I was wondering if I did any mistakes (I'm going to now write it on the card). Happy Birthday Sarah, You were definitely one of the few people in SMS who managed to ...
January 10, 2014

physics
A woman wearing high-heeled shoes stands on a wooden floor. Her total weight is 480N and acts equally on each foot. Why are marks left on the wooden floor by the woman's shoe heels but not her shoe soles?
January 5, 2014

physics
240n/2cm^2
January 5, 2014

physics
240n/40 cm^2
January 5, 2014

physics
A woman wearing high-heeled shoes stands on a wooden floor. Her total weight is 480N and acts equally on each foot. Sometimes all this weight acts on the heels of her shoes. What is the pressure under her heels?
January 5, 2014

physics
A woman wearing high-heeled shoes stands on a wooden floor. Her total weight is 480N and acts equally on each foot. Sometimes all this weight acts on the soles of her shoes. What is the pressure under her soles? area under sole 40cm squared are under heel 2cm squared
January 5, 2014

physics
A woman wearing high-heeled shoes stands on a wooden floor. Her total weight is 480N and acts equally on each foot. Sometimes all this weight acts on the soles of her shoes. What is the pressure under her soles?
January 5, 2014

physics
A woman wearing high-heeled shoes stands on a wooden floor. Her total weight is 480N and acts equally on each foot. Sometimes all this weight acts on the soles of her shoes. What is the pressure under her soles?
January 5, 2014

Math :-)
It was C nevermind lol thank you anyways
January 5, 2014

Math :-)
The answer is A. Right?
January 5, 2014

Math :-)
Analyze the conditional statement below and complete the instructions that follow. You will receive the trophy if you win the championship match. Identify the hypothesis and the conclusion of the conditional statement. A. hypothesis: you will receive the trophy; conclusion: ...
January 5, 2014

Math
Which of the following statements is not always true? A. In a rhombus, the diagonals bisect opposite angles. B. In a rhombus, the diagonals are perpendicular. C. In a rhombus, the diagonals are congruent. D. In a rhombus, all four sides are congruent. I think the answer is A. :-)
January 4, 2014

Math
Which parallelograms have perpendicular diagonals? A. rectangle, rhombus B. square, rhombus C. square, rectangle D. none I know the answer isn't C.
January 4, 2014

magnets
A particle of charge +q and mass m is initially launched at speed v in a region with a constant, uniform magnetic field of magnitude B. If the particle launched in a direction perpendicular to the magnetic field, by the time the particle has traveled a distance d, the work ...
December 18, 2013

AP CALC
find an equation of the tangent line to the graph of x^4-2y^2=1 at the point (2,4)
December 17, 2013

AP CALC
Suppose that g(x)=h(x)/f(x) and f(3)=5, h(3)=6, g'(3)=4 and f'(3)=1. find h'(3).
December 17, 2013

Math
Alan, Gil, and Deb's point score in a video game was in a ratio of 2:3:4. Deb scored 114,400 points. A) how many points did Gil score? B) how many points did all of them score? i dont know how to do this would you please help me, thank you
December 17, 2013

electricity and magnets
A thick metal slab carries a current I. A uniform magnetic field B points perpendicular to the slab (and into the page). If point P on the slab is at a higher potential than point , what can we say about the charge carriers that produce the current in the slab?
December 17, 2013

Physics
Two thin, infinitely long, parallel wires are lying on the ground a distance d=3cm apart. They carry a currentTwo thin, infinitely long, parallel wires are lying on the ground a distance d=3cm apart. They carry a currentTwo thin, infinitely long, parallel wires are lying on ...
December 12, 2013

physicS IMP PLS
@Greco I tried it and it workrd for a and c and for Fy but Fx was wrong!why did you use alpha? please help with this question!
December 9, 2013

physics I'M STUCK PZL HELP
is the "u" the ejected fuel in m/s instead of km/s?
December 8, 2013

physics I'M STUCK PZL HELP
in the equation above what is the "ln"?
December 8, 2013

PHYSICS IMP PLS
@Hil if you had calculated correctly it seem to be right
December 8, 2013

PHYSICS IMP PLS
it's simple 10%/2 because 145=290/2 and it said "assume the burn rate is constant" so V=Vex*ln(1/(1-%/2)) for your case V=2000*ln(1/(1-0.05)) a=V/145
December 8, 2013

Writing Skills
Thank you so much ^_^
December 4, 2013

Writing Skills
i think 1 is 2 2 is 2 3 is 2 are they correct?
December 4, 2013

Writing Skills
1) Frequently their renovation need to be completely redone. 1 need 2 needed 3 were needing 4 will have been needing 5 needs 2)If we were teenagers at the time these licenses signified our passage to adulthood. 1 time these licenses 2 time, these licenses 3 time; these ...
December 4, 2013

Science
How far does a wave travel in three cycles?
December 3, 2013

Science
The distance from the crest of a wave to the next crest is 10 centimeters. The distance from a crest of this wave to a trough is 4 centimeters. a. What is the amplitude of this wave? b. What is the wavelength of this wave?
December 3, 2013

World History
How do the beliefs of being a Christian and being a Crusader contradict each other? How are the ideas of the Crusades used today for both Christians and Muslims?
December 1, 2013

Solar
Someone please help me. I keep getting the same wrong answer (38.4). Please help ASAP. Thanks.
November 29, 2013

Solar
All, anything on this yet? please help!!! Thanks in advance again./Anon1...didn't know there was an Anon already
November 29, 2013

Solar
Greeting All, please assist with the below. Thanks. The spectral power density of a solar simulator is given by: P(λ)=7.5∗1015λ−2.25∗109 [Wm^-2m^-1] for 300nm<λ<500nm P(λ)=2.25∗109−1.5∗1015λ [Wm^-2m^-1] for ...
November 29, 2013

History
Who were the Seljuk Turks? What did they do?
November 25, 2013

ET3034TUx Solar Energy
Consider a crystalline PV module with the following output parameters mentioned at STC (Standard Testing Condition) conditions by the manufacturer. Pmax = 250W Voc = 50V Isc = 6A NOCT = 40°C Temperature coefficient of power = -1W/°C a) If the ambient temperature falls ...
November 25, 2013

Chemistry
Please help! Is 4-methylphenol acid, basic or neutral?
November 25, 2013

Language Arts
Have you ever wanted to know what people said and thought about you when you weren't around? If you could disguise yourself in some way and be around the people you know, how would you carry it out? Describe your ideal disguise and a scenario that you imagine would take ...
November 24, 2013

Language Arts
Thank you! That's just what I needed tips! :-)
November 24, 2013

Language Arts
describe a soggy, wet day. use sensory details.
November 24, 2013

Physics
can you help me with the problem of TURNTABLE SOLUTIONS???
November 24, 2013

Physics
thanks Elena you're the best ;)
November 24, 2013

Physics
TORQUE, ROTATION AND TRANSLATION A Yo-Yo of mass m has an axle of radius b and a spool of radius R . Its moment of inertia about the center can be taken to be I=(1/2)mR2 and the thickness of the string can be neglected. The Yo-Yo is released from rest. You will need to assume ...
November 24, 2013

Physics
it didn't work :(
November 24, 2013

Physics
TURNTABLE SOLUTIONS A gyroscope consists of a uniform disc of mass radius M= 1 kg and radius R= 0.3 m . The disc spins with an angular speed ω= 400 rad⋅s-1 as shown in the figure below. The gyroscope precesses, with its axle at an angle 30∘ below the ...
November 24, 2013

water treatment
A wastewater treatment plant based on activated sludge with biological phosphate and nitrogen removal via pre-denitrification. The influent flow (dwf) is 30,000 m3/day and the influent BOD concentration is 300 mg BOD/l. The suspended solid concentration in the influent is 150 ...
November 24, 2013

water treatment
A wastewater treatment plant based on activated sludge with biological phosphate and nitrogen removal via pre-denitrification. The influent flow (dwf) is 30,000 m3/day and the influent BOD concentration is 300 mg BOD/l. The suspended solid concentration in the influent is 150 ...
November 24, 2013

Pages: <<Prev | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | Next>>

Search
Members